i HAVE JUST HAD A NEW KITCHEN FITTED WITH NEW COOKER AND HOB ETC COMPLETE WITH A NEW CONSUMER UNIT . THE NEW UNIT HAS TWO RCD'S ONE SIDE HAS THE OVEN,HOB AND 9.5KW SHOWER ON IT THE OTHER SIDE HAS LIGHTING AND RING MAINS ON IT . THE PROBLEM IS WHEN THE SHOWER IS ON WITH THE OVEN THE RCD TRIPS . I CAN HAVE EITHER ONE ON INDIVIDUALLY BUT NOT BOTH AT THE SAME TIME ,CAN SOMEONE HELP OUT ?